Spring-cushion work.



PATENTED NOV. 19.1907 W. E. SMITH & M. A. PHELPS. 1

SPRING CUSHION WORK.

APPLICATION FILED NOV. 9, 1006 2 SHEETSSHEET 1 No. 871,244. PATENTEDNOV. 19, 1907. W. R. SMITH & M. A. PHELPS.

SPRING CUSHION WORK.

APPLICATION FILED NOV. s, 1906.

2 SHEETS-SHEET 2.

13 i in zone:

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UNITED s'rarns PATENT FFIGE.

WATSON R. SMITH AND MAGY A. PHELPS, OF JACKSON, MICHIGAN, ASSIGNORS TOJACKSON CUSHION SPRING COMPANY, OF JACKSON, MICHIGAN.

SPRING-CUSHION WORK.

Specification of Letters Patent.

Patented Nov. 19. .1907.

Application filed November 9.1906. Serial No. 342.696

1'0 alt whom it may concern:

This invention relates to spring cushion work.

One object of the invention resides in as sembling' one setof springsupon the top of another set of springs and connecting the upper andlower sets together.

Another object of the invention is topro- *vide upper and lower sets ofsprings connected together with one set of springs formed of heaviermaterial than the other set of springs.

Inthe formation of spring cushions they are sometimes made of a verylight gage'of wire so that they'might be rendered soft,

easyor resilient upon a vehicle going over an obstruction in the-roadway and if these 25.

's rings are made of a very light'gage of wire, tliey -willmove towardeachother when an obstruction is engaged and allow the springs ofthecusljiions to strike the bottom of the seat;whereas, if the wiresprings are'made of pose a-setof springs of a comparatively light gageof 'znaterlal'upon another set of springs.

a heavier gage of wire they are rendered st'ifi' enough to preventstriking the bottornof the struction, but the stiff springs preclude theossibility of properresiliency. It 18' thereoraanother object of ourinvention to d1sof'a comparativelyheavy gage of material, so that whenan obstruction is engaged by the vehicle, the cushion will befoundpliable and 'easyto ride and-prevent the possibility ofthelriderstriking the bottom of the seat;

on which he maybe sitting, or in the case of a sleeping car, the bedupon which one may be lying. In our construction, when the cushionfisused in avehicle, the rider of the cushion, in the event'of the vehiclestriking an obstruction, will not strike the bottom of the seat for thesprings of heavier gage mate-- fi'lftl will-cushion the spr ngs oflighter gage of material.

While we refer specifically to-vehicles in vention.

another form of the invention.

the expression of the objects of our invention, it is to be understoodthat our invention is equally applicable to chairs, stools, couches,beds and the like and that it is our intention to apply our invention inthese connections as well as to use in vehicles.

with the above and other objects in view the present invention consistsin the combi nation and arrangement of parts hereinafter specificallyreferred to, shown in the accoznpanying drawings and particularlypointed out in theappended claims, it being understood that changes maybe made in the form, proportion, and size and minor details withoutdeparting from the spirit or sacrificing any of the advantages of theinvention In the drawings: Figure l is a perspective view of a corner ofone form of'the in- Fig.-2 isv a longitudinal sectional view. Fig. 3 isa transverse sectional view. Fig. :4 is a detail perspective view of oneof the clips arranged between upper and lower sets of springs. Fig. 5 isa top plan view of Fig. 6 is a longitudinal sectional view; and Fig. 7is a detail view of one of the clips supporting the lower setof springs.V

Referring; .now ,to the accompanying drawings,'and more particularly toFigs. 1 to 4 inclusive, the reference characters 1 and 2 indicate upperand lower edge wires, while the characters 3 and 4 respectivelyindicateseparate upper and lower sets of conical springs. The lower set ofsprings are composed of much heavier wire than the upper setof springs,as clearly shown in the draw- 'ings, so that the lower set may cushiontheupper 'setji on pressure being brought to bear upon tie cushion.' Thelower set of springs is supported upon pairs-of supporting wires 5,andif (lesired,'the outerml'ist springs of the'lower set may engage the.lower edge wire. In any event the lower -convolutions of the lower setof springs are Cir 5 at each end, the outermost fingers being bent inone direction and the intermediate finger being bent in the oppositedirection to form the necessary rigid connection of the clip 7 withrespect to the lower set of springs;

Each clip-7 has a pair of oppositely disposed springs at their bottom.

tongues 9 struck up therefrom and these v tongues are designed to engageover the 1 lower. convolutions of the corresponding springs 3 to firmlysupport the upper set of 7 It will thus be seen that the upper set ofsprings have a broad bearing surface and that they are rigidly connectedto their bearing surface. These upper sets of springs are connected together by suitable clips 10 and the outer most springs of the upper setmay be secured to the upper edge wire by means of clip 11.

In the construction described above, it will be seen that the lower setsof springs are of the double conical variety while the upper set ofsprings are of the cone variety with. their apicies arranged within thecontour of theupper conv'olut-ions of the lower springs and" restingfirmly upon the aforesaid double end clip '7. However, it is obviousthat we might employ bothsets of springs of the double cone variety orboth sets of the single cone variety with their apices directed to: wardeach other. 1

ln Figs. .5 to 7 we show a modified form of the invention, thecharacters 12 and 13 represwnting'upper and lower edge wires and thenumerals l4 representing supporting wires. in this lorm ol' theinvention the upper-and lower sets of springs 15 and H) are of singleconical variety with their apices directed toward each other, the lowerconvolutions ol e lower set of the springs being connected to thesupporting and lower edge wires by :imans ol double end clips 17, whichlatter are of the same 'iUB-llliLlZlOI) Qa's the aforesaid double endclips '7, save that the clips-l7 have not the tongues 0 ol the clips 7and the tact that the intermediate tongues 18 ol" the clips I7arearranged preferably in substaniall a vertical plane, while the outer [ingers If) are bent over the correspondingwires and the lowerconvolutioiis of the springs.-"* 'g P Between the corresponding rows ofsprings 15am] Hi we dispose suitable bands or strips .20, ear-h providedwith elements 21 projecting above and below the same and having acalla-r 22 at each end. The apex or smaller 0 ends of the upper andlower alining rows of springs are connected to these elements 21.

and arranged between the collars of the latter and the correspondingface ol' the bands or strips 20, as shown. As intho form l'irstdescribed, the-upper set of" springs are of lighter material than thelower set thereof,

and the upper set of springs have their upper able to have the springsof light gage. of material upon the bottom and obviously our improvedcushion could be reversed without departing from the spirit of theinvention, the lower set of springs'in any event cushioning the upperset of springs upon pressure being brought to bear upon the cushion.

As shown in the accompanying drawings, the springs of the lower set areof the same height as the upper set of springs, but one set may beshorter than the other set, if desired, the main object being to provideone set of springs of heavier gage than the other set.

What is claimed is l 1. A spring cushionconiprising a frame, supportingwires, a 'set'of'springs mounted upon the supporting wires, means forconnecting the said springs to the supporting wires, another setofsprings arranged upon the aforesaid set of springs, and clips eachhaving inner and outer iingers at, ea'chend to' each also provided withtongues intermediate itsends to connect the lower eonvolu'tions of thesecpndsct of springsto connect the two sets togethen v 2. A'springcushion comprising afra'me, a set of lower spring members of relativelylargewirc mounted upon said frame, plates having loops bent from theirends for inelos-' ing the. upper convolutions of said spring membersneurone side and with loops in the, ends whereby tongues aresreleasedfor inclosing the said convolutions from the opposite sides andwithclips intermediate the ends of the plate whereby oppositelyextending tongues are produced, and a set of upper spring members ofrelatively small wire withthe lower cpnvolutions thereof engaging .theintermediate tongues of said plate.

3. A spring cushion comprising a support,

'a low'er spring member of relatively heavy wire connected at one end tosaid su port, a 4

plate hearing over the upper convolution of said tower spring member andwith loops at the ends engaging saidnipper convolutions and withoppositely extending tongues inter-f mediate. the ends olfsaid plate,andan upp'c'r' spring men-dim of relatively small wire and engaginglower convolution.

4, Aspring cushion comprising'a support, a lower spring member connectedat one end to said support, a plate bearing over the upper convolutionofsaid lower spring member said intermediate tongues bv its' a'zme z 8 andwith loeps at the ends engaging said up I names to this specification inthe presencevo'f per convolution and with oppositely ex'tcnd- 1 twosubscribing witnesses. mg tongues intermediate the ends of said I\VATSON E. SMITH. plate, and an upper spring n'iember engaging i MACY A.PHELPS.

5 said intermediate tongues by its lower e0nv0- Witnesses:

lumen. MABEL ALLINGSON,

In testimony whereof We signed our ETHEL 'M. PHELAN.

